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Scheduling semiconductor wafer fabrication
- L. Wein
- 1 August 1988
The impact that scheduling can have on the performance of semi-conductor wafer fabrication facilities is assessed. The performance measure considered is the mean throughput time (sometimes called…
Echelon Reorder Points, Installation Reorder Points, and the Value of Centralized Demand Information
We consider a serial inventory system with N stages. The material flows from an outside supplier to stage N, then to stage N - 1, etc., and finally to stage 1 where random customer demand arises.…
Economics of Product Development by Users: the Impact of Sticky Local Information
It is argued that agency-related costs and information transfer costs will tend drive the locus of problem-solving in the opposite direction-away from problem-Solving by specialist suppliers, and towards those who directly benefit from a solution and who have difficult-to-transfer local information about a particular application being solved, such as the direct users of a product or service.
Emergency response to a smallpox attack: The case for mass vaccination
- E. H. Kaplan, David L. Craft, L. Wein
- Medicine, Political ScienceProceedings of the National Academy of Sciences…
- 12 July 2002
Estimating the number of cases and deaths that would result from an attack in a large urban area of the United States and comparing the results to mass vaccination from the moment an attack is recognized finds that mass vaccination results in both far fewer deaths and much faster epidemic eradication.
Optimal scheduling of radiotherapy and angiogenic inhibitors
Inventory Management of Remanufacturable Products
We address the procurement of new components for recyclable products in the context of Kodak's single-use camera. The objective is to find an ordering policy that minimizes the total expected…
Quantifying the Routes of Transmission for Pandemic Influenza
A mathematical model of aerosol and contact transmission of influenza within a household containing one infected suggests that aerosol transmission is far more dominant than contact transmission for influenza.
An Inverse-Optimization-Based Auction Mechanism to Support a Multi-Attribute Rfq Process
We consider a manufacturer who uses a reverse, or procurement, auction to determine which supplier will be awarded a contract. Each bid consists of a price and a set of nonprice attributes (e.g.,…
Scheduling a Make-To-Stock Queue: Index Policies and Hedging Points
This work considers the problem of scheduling the machine to regulate finished goods inventory, minimizing holding and backorder, or holding and lost sales costs, and develops index policies to decide which class to produce, including Whittle's "restless bandit" index, which possesses a certain asymptotic optimality.
Emergency response to an anthrax attack
- L. Wein, David L. Craft, E. H. Kaplan
- MedicineProceedings of the National Academy of Sciences…
- 21 March 2003
The results underscore the need for the extremely aggressive and timely use of oral antibiotics by all asymptomatics in the exposure region, distributed either preattack or by nonprofessionals postattack, and the creation of surge capacity for supportive hospital care via expanded training of nonemergency care workers at the local level.